This brochure is printed on paper produced from from 80% recycled post-consumer fibre and 20% virgin pulp which is sourced from responsibly managed and sustainable forests (FSC certified). The printing inks and sealant are vegetablebased making the document fully recyclable.
2
Ancon Anco n design de signs s and an d manufa ma nufactur ctures es high h igh inte integri grity ty stee s teell produ pr oducts cts for the construction industry. Through continuous programmes of new product development, inward investment and employee advancement, the company is committed to maintaining the highest level of customer service within a dynamic and
For many years the use of mechanical couplers to join reinforcing bars has been regarded as a means of reducing the use of long bars. Engineers and contractors now recognise the benefits of using couplers to accelerate the speed of construction, increase productivity and simplify design details.
challenging industry. Masonry Support Systems
Coupler Selection
5-6
Typical T ypical Coupler Applications
Windposts and Lintels Masonry Reinforcement Wall Ties and Restraint Fixings Channel and Bolt Fixings Tension T ension and Compression Systems Insulated Balcony Connectors Shear Load Connectors Punching Shear Reinforcement
7
Tapered T apered Thread Standard Series
8-9
Tapered T apered Thread Positional Series
10-11
Tapered T apered Thread Transition Transition Series
12
Tapered T apered Thread Starter Bars
13
Tapered T apered Thread Weldable Series
14
Tapered T apered Thread Headed Anchors
15
Bartec Series
16-19
Bar X-L Series
20-23
MBT ET Series
24-25
MBT Transition Series
26
MBT Continuity Series
27-29
MBT Headed Anchors
30
MBT Electric Wrench
31
Other Ancon Products
31
Reinforcing Bar Couplers Reinforcement Continuity Systems Stainless Steel Fabrications Flooring and Formed Sections
ISO 9001: 2000 FM 12226
ISO 14001: 2004 EMS 505377
Refractory Fixings
3
Reinforcing Bar Couplers SALES SUPPORT Ancon’s ‘Products for Structural Concrete’ Division provides assistance for clients who require products which are used in structural concrete construction. These include, but are not restricted to, reinforcing bar couplers, continuity reinforcement systems and shear load connectors. A dedicated team is able to offer technical advice, pricing information and guidance on the selection of the most appropriate product for a specific application. Enquiries from overseas are also dealt with by the PSC team. To contact the team please email
[email protected] or call +44 (0) 114 275 5224.
REINFORCING BAR COUPLERS
Lapped joints are not always an appropriate means of connecting reinforcing bars. The use of laps can be time consuming in terms of design and installation and can lead t o greater congestion within the concrete because of the increased amount of rebar used. Ancon couplers can simplify the design and construction of reinforced concrete and reduce the amount of reinforcement required. Lapped joints are dependent upon the concrete for load transfer. For this reason any degradation in the integrity of the concrete could significantly affect the performance of
the joint. The strength of a mechanical splice is independent of the concrete in which it is located and will retain its strength despite loss of cover as a result of impact damage or seismic event. The Ancon range of reinforcing bar couplers is the most comprehensive available and includes tapered threaded, parallel threaded and mechanically bolted couplers. Ancon reinforcing bar couplers are available through major rebar stockists and approved distributors.
Characteristic Strengths of High Yield Reinforcing Bar Diameter (mm)
Area (mm2 )
Fy(kN) 500N/mm2
10
78.5
39.3
12
113
56.5
14
154
77.0
16
201
100.5
18
254
127.2
20
314
157.0
22
380
190.0
25
491
245.5
26
531
265.4
28
616
307.8
30
707
353.4
32
804
402.1
34
908
453.9
36
1,018
509.0
40
1,256
628.3
50
1,963
981.7
The information in this literature is given as a guide only. Please refer to Ancon installation procedures, instructions and operating manuals for more specific details on these products.
4
Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk
COUPLER SELECTION The four types of Ancon reinforcing bar couplers require different fixing methods. This, together with the quantity to be fixed and the location, will determine which is the most appropriate coupler for a particular situation.
Availability of Couplers Bar Diameter (mm)
10
12
14
16
18
20
22
24
25
26
28
30
32
34
36
Tapered Thread Standard
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Tapered Thread Positional
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Tapered Thread Transition
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Tapered Thread Starter Bars
✓
✓
✓
✓
✓
✓
Tapered Thread Weldable
✓
✓
✓
✓
✓
✓
✓
✓
Tapered Thread Anchor
✓
✓
✓
✓
✓
✓ ✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Bartec
✓
Bar X-L
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
MBT ET
✓
MBT Transition
✓
MBT Continuity MBT Anchor
✓
✓
✓
✓
✓
✓ ✓
✓
✓
50
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓ ✓
40
✓
✓
✓
✓ ✓
✓
✓
✓ ✓
✓
✓
✓
✓ ✓
✓
✓
Tapered Thread
The Tapered Thread coupler is designed to suit the majority of applications which require the joining of reinforcing bars. The ends of the rebar are cut square and a tapered thread is cut onto the bar to suit the tapered thread coupler. The sleeve is tightened onto the threaded bar end using a calibrated torque wrench.
Bartec The Bartec system is one of the smallest couplers in the Ancon range. The ends of the bars are enlarged and a parallel thread is cut onto the ends to suit the threaded coupler. The coupler is assembled using a pipe or chain wrench. Calibrated wrenches are not necessary.
Bar X-L
Bar X-L couplers provide a full strength joint and are the smallest couplers in the Ancon range. They are particularly appropriate for applications where fatigue is an issue. The ends of the bars are cut square and marginally enlarged. A parallel thread is then rolled onto the ends to suit the threaded sleeve. The coupler is installed using a pipe or chain wrench. Calibrated torque wrenches are not required. This product is only available in selected territories in mainland Europe. Please contact Ancon for locations. MBT
MBT couplers are suitable where it is not convenient to have the bar ends prepared for parallel thread or tapered thread couplers. The bars are supported within the coupler on two serrated saddles. Bars are locked in place by a series of special lockshear bolts, the heads of which shear off when the predetermined tightening torque is reached, providing a visual check of correct installation.
5
Reinforcing Bar Couplers COUPLER SELECTION Range Type
Tapered Thread
Bartec
Standard Positional Transition Weldable
Bar Dia. (mm)
12-50
12-50
12-50
12-50
Bar X-L
MBT
HA
Type A
Type B
Type C
Type A
Type B
Type C
ET
12-50
12-50
12-50
12-50
12-50
12-50
12-50
10-40
10-40
10-40
No
No
No
Bar End Prep Threaded Threaded Threaded Threaded Threaded Threaded Threaded Threaded Threaded Threaded Threaded Bar Rotation
Yes
No
Installation Method Capacity
Yes
Yes
Yes
Limited
No
Yes
Limited
No
No
10-40 No
No
No
Wrench
Wrench
Wrench or Nut Runner
Full Strength up to 529N/mm2
Full Strength up to 650N/mm2
Full Strength up to 650N/mm2
Full Strength up to 529N/mm 2 BS8110
{
BS8110
BS8110
BS8110
CARES TA1-B
ACI 349
DET NORSKE VERITAS
ASME III DIV 2 (ACI 359)
(X-L 25, 32)
ACI 318
ASME III DIV 2 (ACI 359)
CSA CAN 3 – N2872
ACI 349 (36, 43, 57)
DIBt Approval No Z-1.5-179
12, 14, 16, 20, 25, 28, 32, 40
}
KOMO K23495/02
}
BS5400
{
Sizes 12, 14, 16, 20, 25, 32, 40
COUPLER SPECIFICATION
Ancon Couplers can be specified using the part numbers which are included in the tabulated data in each section of this brochure. The following examples show how each type of coupler should be specified when using 20mm bar. Type of Coupler
Reference
Tapered Thread Standard
TTS20
Tapered Thread Positional
TTP20
Tapered Thread Transition
TTT20
Tapered Thread Starter Bar
TTSB20
Tapered Thread Weldable
TTW20
Tapered Thread Headed Anchor
TTH20
Bartec Type A
BT20/A
Bartec Type B
BT20/B
Bartec Type C
BT20/C
Bar X-L Type A
XL20/A
Bar X-L Type B
XL20/B
Bar X-L Type C
XL20/C
MBT ET Series
ET20
MBT Transition Series
ET20/16
MBT Continuity Series
C20
MBT ET Headed Anchor
ETHA20
If you require any further assistance please contact Ancon Building Products.
BBA 98/R102
}
ET10,12,16,20,25,32,40 ACI 318
AFCAB Certified No M07/006 Rev. 1
6
No
HA
Torque Wrench
Approvals
{
Yes
Transition Continuity
DIN 1045 German Code
{
DIBt Approval No Z-1.5-10 ET 10, 12, 14, 16, 20, 25, 28
}
Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk
TYPICAL COUPLER APPLICATION GUIDE
The following table provides a guide when selecting the most appropriate couplers for specific applications. Recommendations are based upon typical usage. Please contact Ancon for further assistance on the correct selection and specification of couplers.
Application
Tapered Thread
Bartec
Bar X-L
Wall to slab connection
✓
✓
✓
Wall to pre-cast beam connection
✓
✓
✓
Column construction
✓
✓
✓
Pre-cast element to pre-cast element connection
✓
✓
✓
✓
Closing of access openings
✓
✓
✓
✓
Rebar cage pre-fabrication
✓
✓
✓
✓
✓
✓
Extension / repairs to existing structures
✓ ✓
Hook bars to pile connection
✓
Fatigue applications Bar end terminations
MBT
✓
✓ ✓
7
Reinforcing Bar Couplers TAPERED THREAD The Ancon range of Tapered Thread couplers is designed to suit the majority of applications which call for the joining of reinforcing bars. Available to suit bar sizes 12mm to 50mm, the couplers are installed quickly and easily on site without the need for specially trained personnel or specialised, expensive machinery. The compact design of each coupler ensures suitability for use in confined situations where space is restricted or where the loss of cover must be minimised.
The couplers are normally supplied fitted to the end of threaded bar, requiring only the engagement and tightening of the adjoining bar on site. In order to ensure correct installation, Ancon Building Products specifies the use of a torque wrench. The range of Tapered Thread couplers is available through major rebar suppliers. Please contact Ancon for further details. STANDARD COUPLER The Standard Tapered Thread coupler is suitable for connecting two bars of the same diameter, where one bar can be rotated. It comprises an internally threaded sleeve with two right hand threads which are tapered towards the middle of the coupler. The bar ends are square cut and a tapered thread is cut onto the bar. A nominal allowance of +25mm should be allowed per threaded bar end for square cutting the bar end.
The couplers are generally torqued onto the reinforcing bar in the bar threading shop, the internal threads protected by plastic end caps. The threaded ends of the continuation bar are protected by plastic thread protectors. Engagement of the bar within the coupler is simplified by the tapered thread design which aids alignment. When the bar is fully engaged within the coupler, the continuation bar is tightened using a torque wrench. The Ancon Standard Tapered Thread coupler is designed to meet the requirements of BS 8110 and to achieve failure loads in excess of 115% of the characteristic strength of grade 500 rebar. Standard Coupler Dimensions l
d
Bar Diameter (mm)
12
14
16
18
20
22
24
25
26
28
32
34
36
40
50
External Dia.
d
22
22
25
28
30
32
36
36
40
42
45
46
55
55
60
70
Coupler Length
l
58
64
70
72
74
81
87
90
94
100
106
112
119
126
138
170
Weight (kg)
0.13
0.12
0.17
0.22
0.24
0.31
0.43
0.41
0.59
0.66
0.82
0.85
1.50
1.50
1.90
2.22
Torque (Nm)
60
85
110
135
165
205
250
265
270
275
280
285
295
305
330
350
TTS12
TTS14
TTS16
TTS18
TTS20
TTS22
TTS24
TTS25
TTS26
TTS28
TTS30
TTS32
TTS34
TTS36
TTS40
TTS50
Part No.
TESTING & APPROVALS
The Standard range of Tapered Thread couplers has been tested and approved by UK CARES to show compliance with the requirements of BS 8110. The most common sizes have been tested and approved by the DIBt and are covered by Approval No Z-1.5-179. Ancon Tapered Thread couplers meet the requirements of KIWA document BRL 0504 “Mechanical Steel Reinforcement Couplers” and have been awarded KOMO Certificate No. K23495/02. Ancon Standard Tapered Thread Couplers, sizes 12, 14, 16, 20, 25, 32 and 40 are AFCAB Certified.
8
30
Note: Not all coupler types and sizes are relevant to the national approvals shown. For details of coupler types and sizes relevant to each national approval please refer to the relevant approval document, which is available on request.
Certificate No. K23495/02
Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk
INSTALLATION Tapered Thread Standard Series 1
The coupler is normally supplied fixed to the reinforcing bar, ready to be installed and cast in concrete.
3
Continue to screw the bar into the coupler until tight.
2
After casting the concrete and when ready to extend, remove the plastic end cap from the coupler. Position the continuation bar in the sleeve and rotate t he bar into the coupler.
4
To ensure correct installation, tighten the joint to the specified torque using a calibrated torque wrench on the continuation bar. Tightening torques are shown in the table opposite.
9
Reinforcing Bar Couplers POSITIONAL COUPLER The Ancon Tapered Thread Positional coupler is designed to be used in applications in which neither bar can be rotated. Having a degree of adjustability, the Positional coupler can also be used as a closer between two fixed bars.
INSTALLATION Tapered Thread Positional Series 1
The Positional coupler comprises three components, a male section, a female section and a locking nut. The male component has an internal tapered thread and an extended external parallel thread. The female component has a parallel thread and a tapered thread, both of which are internal. A locknut is used to secure the connection when the correct degree of adjustability has been achieved. All components, including the locknut must be tightened using a torque wrench. Plastic thread protectors are used to prevent damage to the threaded bar ends and the internal threads of the couplers are protected by plastic end caps. A nominal allowance of +25mm should be allowed per threaded bar end for square cutting the bar end. TESTING & APPROVALS The Positional range of Tapered Thread couplers has been tested and approved by UK CARES to show compliance with the requirements of BS 8110.
The female section of the positional coupler is normally cast flush in the concrete. The installer must take care to protect the internal threads and prevent the ingress of concrete. Once cast and ready to extend, the male end complete with locknut can be screwed into place.
The most common sizes have been tested and approved by the DIBt and are covered by Approval No Z-1.5-179. Ancon Tapered Thread couplers meet the requirements of KIWA document BRL 0504 “Mechanical Steel Reinforcement Couplers” and have been awarded KOMO Certificate No. K23495/02.
2
Ancon Tapered Thread Positional Couplers, sizes 12, 14, 16, 20, 25, 32 and 40 are AFCAB Certified.
Certificate No. K23495/02
Note: Not all coupler types and sizes are relevant to the national approvals shown. For details of coupler types and sizes relevant to each national approval please refer to the relevant approval document, which is available on request.
Positional Coupler Dimensions d1
lc li
Position the continuation bar as near as possible to the coupler fitted to the cast-in bar.
d2
Female component 3
Locknut
ls
Male component le
In lm
la
Run the male component and locknut onto the continuation bar until fully engaged. lo
Bar Diameter (mm)
10
External Dia. External Dia. Female Sleeve Length Locknut Length Closed Length Max. Open Length Bar Insertion Prior to Engagement Bar Insertion Full Engagement Adjustable Length Max Distance between Bar Ends Weight (kg) Coupler Torque (Nm) Locknut Torque (Nm) Part No.
d1 d2 ls ln lc lo li le la lm
12
14
16
18
20
22
25
26
28
30
32
34
36
40
50
25 22 84 13 138 178 9 26 23 119 0.41 60 20 TTP12
25 22 89 13 150 190 12 29 23 124 0.58 85 25 TTP14
30 25 95 13 155 196 15 32 24 127 0.62 110 30 TTP16
36 28 95 13 156 195 18 32 25 131 0.95 135 40 TTP18
36 30 112 13 180 231 8 33 26 157 1.12 165 50 TTP20
42 32 120 13 191 245 11 37 28 171 1.56 205 60 TTP22
46 36 132 13 207 266 16 42 34 176 2.04 265 70 TTP25
46 40 136 13 213 273 18 44 34 185 2.18 270 80 TTP26
50 42 137 13 218 274 22 47 34 174 2.30 275 80 TTS28
55 45 147 15 234 295 25 50 36 195 3.34 280 85 TTP30
55 46 153 15 243 305 28 53 37 193 3.47 285 90 TTP32
60 55 164 15 261 328 31 56 42 216 4.66 295 100 TTP34
70 55 190 15 296 373 34 58 54 257 5.91 305 105 TTP36
70 60 188 15 289 366 40 66 52 228 6.80 330 110 TTP40
85 70 233 16 353 448 54 82 67 278 11.65 350 130 TTP50
Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk
4
Using a torque wrench tighten the male component on the continuation bar to the specified torque, whilst holding the continuation bar with a second wrench.
5
Run the locknut along the threaded barrel of the male component to abut the female section. Using the torque wrench, tighten the locknut to the specified torque. Tightening torques are shown on the table opposite.
At this point the groove in the parallel threaded section of the male component must be completely covered by the locknut. If any part of the groove is visible beyond the locknut, the degree of adjustability has been exceeded and the installation is incorrect. Correct Installation
Groove is completely hidden within locknut
Incorrect Installation
Groove is protruding from locknut
11
Reinforcing Bar Couplers TRANSITION COUPLER The Ancon Tapered Thread Transition coupler is used to join reinforcing bars of different diameters where one coupler can be rotated. With all the benefits of the Standard range, Transition couplers are designed to achieve failure loads greater than 115% of the characteristic strength of the smaller diameter grade 500 reinforcing bar.
The Transition coupler comprises an internally threaded sleeve with two right hand threads both of which are tapered towards the middle of the coupler. The diameter of each thread corresponds to the appropriate bar size. A nominal +25mm should be allowed per threaded bar end for square cutting the bar end.
TESTING & APPROVALS The Transition range of Tapered Thread couplers has been tested and approved by UK CARES to show compliance with the requirements of BS 8110.
INSTALLATION Tapered Thread Transition Series 1
The coupler is normally supplied fixed to a reinforcing bar, ready to be installed and cast in concrete. 2
After casting of the concrete and when ready to extend, remove the plastic end cap from the coupler. Position the continuation bar in the sleeve and rotate the bar into the coupler. 3
Tapered Thread Transition couplers have also been approved up to size 32/40 by the DIBt and are covered by Approval No Z-1.5-179. Ancon Tapered Thread couplers meet the requirements of KIWA document BRL 0504 “Mechanical Steel Reinforcement Couplers” and have been awarded KOMO Certificate No. K23495/02.
Continue to screw the bar into the coupler until tight. Certificate No. K23495/02
4
Ancon Tapered Thread Transition couplers, sizes 12/14, 12/16, 14/16, 16/20, 20/25, 25/32 and 32/40, are AFCAB certified. Note: Not all coupler types and sizes are relevant to the national approvals shown. For details of coupler types and sizes relevant to each national approval please refer to the relevant approval document, which is available on request.
Transition Coupler Dimensions
To ensure correct installation, tighten the joint to the specified torque using a calibrated torque wrench on the continuation bar. Tightening torques are shown in the table below.
l
d
Note: In the event of the coupler being supplied fixed to the smaller bar it is necessary to ensure that when tightening the larger continuation bar, the force is not transmitted through the smaller bar.
d
Bar Diameter
12/16
14/16
16/18
16/20
18/20
20/22
20/25
20/28
22/26
25/28
25/32
26/30
28/32
30/34
32/40
34/40
40/50
External Dia.
d
22
25
25
28
30
30
32
36
42
40
42
46
45
46
55
55
60
70
Coupler Length
l
65
72
71
75
78
77
82
90
91
92
99
112
104
110
117
138
133
170
0.14
0.21
0.19
0.25
0.29
0.28
0.32
0.48
0.65
0.62
0.72
0.98
0.87
0.91
1.59
1.62
1.97
2.61
Weight (kg) Torque (Nm) 12
12/14
Part No.
60/85
60/110 85/110 110/135 110/165 135/165 165/205 165/265 165/275 205/270 265/275 265/285 270/280 275/285 280/295 285/330 295/330 330/350
TTT12/14 TTT12/16 TTT14/16 TTT16/18 TTT16/20 TTT18/20 TTT20/22 TTT20/25 TTT20/28 TTT22/26 TTT25/28 TTT25/32 TTT26/30 TTT28/32 TTT30/34 TTT32/40 TTT34/40 TTT40/50
Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk
STARTER BAR SYSTEM The Ancon Starter Bar system is designed to increase the speed of construction by eliminating the need to cut or drill formwork at construction joints where continuity of reinforcement is required. Incorporating the Ancon tapered thread coupler, approved by UK CARES, the system simplifies design and is ideal for use with slipforming.
The starter bar system comprises two elements. The female section consists of a threaded bar connected to a tapered thread coupler. A nail plate is fixed to the end of the coupler and is held in place by a plastic end cap. This prevents ingress of concrete until the continuation bar is fixed. The male section comprises a straight bar threaded at one end to allow connection to the coupler after striking the formwork and removing the end cap and nail plate. In order to ensure correct installation the continuation bar is tightened using a calibrated torque wrench.
Starter Bar Dimensions d1
l
Ancon also manufactures the Eazistrip Reinforcement Continuity System. Pre-bent bars are housed within a casing and cast into the concrete. After striking the formwork, the casing's cover is removed and the bars straightened, ready for joining to the main reinforcement.
d
INSTALLATION Starter Bar System
The coupler is normally supplied fixed to the reinforcing bar. Upon removal of the plastic end cap, position the nail plate, which is supplied separately, on the end of the coupler to enable it to be fixed flush to the formwork. Secure the nail plate by replacing the end cap. Tie the starter bar assembly to the fixed bar and position against the formwork. Nail the assembly to the formwork. After casting the concrete and striking the formwork, remove the end cap and nail plate and place the continuation bar in the coupler and rotate until tight. To ensure correct installation tighten the rebar to the specified torque using a calibrated wrench on the continuation bar. Tightening torques are shown in the following tables.
Threaded Continuation Bar Bar Diameter
12
14
Bar Length
625
730
Torque (Nm)
60
85
Part No.
16
18
20
22
24
25
32
830
935
1035
1140
1240
1290
1655
110
135
165
205
250
265
285
TTSB12M TTSB14M TTSB16M TTSB18M TTSB20M TTSB22M TTSB24M TTSB25M TTSB32M
The threaded bar lengths in the table above are minimum lap lengths. Longer bars are available upon request.
Starter Bar Bar Diameter
12
14
16
18
20
22
24
25
32
System Length (Bar with coupler)
660
765
870
975
1075
1185
1285
1340
1715
Coupler Length
l
58
64
70
72
74
81
87
90
112
Coupler External Dia.
d
22
22
25
28
30
32
36
36
46
Nail Plate Dia.
d1
70
70
70
70
70
70
90
90
90
Torque (Nm) Part No.
60
85
110
135
165
205
250
265
285
TTSB12F
TTSB14F
TTSB16F
TTSB18F
TTSB20F
TTSB22F
TTSB24F
TTSB25F
TTSB32F
The threaded bar lengths in the table above are minimum lap lengths. Longer bars are available upon request. 13
Reinforcing Bar Couplers TAPERED THREAD WELDABLE COUPLERS Ancon Tapered Thread Weldable couplers provide a convenient means of connecting reinforcing bars to structural steel plates or sections. Shorter than the standard coupler, it has a tapered thread at one end. The other end is welded directly to the steel.
INSTALLATION 1
The couplers are produced in either steel grade Type 1045 to ASTM A576 or Type 150M19 steel to BS970. The Tapered Thread Weldable coupler is suitable for welding to structural steels, Grade S275 or Grade S355. The load conditions at the connection must be determined by the designer along with the type and size of weld required. Another important consideration is the type of electrode to be used, which must be matched to the properties of the plate and tube, and to the site conditions under which the welding will be undertaken. Welders should be qualified for the type of weld required.
The coupler must first be welded to the steelwork.
For further assistance and technical information please contact Ancon Building Products. 2
TESTING & APPROVALS Ancon Tapered Thread Weldable couplers, sizes 12mm-40mm, have been approved by the DIBt and are covered by Approval No Z-1.5-179.
Ancon Tapered Thread couplers meet the requirements of KIWA document BRL 0504 “Mechanical Steel Reinforcement Couplers” and have been awarded KOMO Certificate No. K23495/02. Ancon Tapered Thread Weldable Couplers, sizes 12, 14, 16, 20, 25, 32 and 40, are AFCAB Certified.
Certificate No. K23495/02
Note: Not all coupler types and sizes are relevant to the national approvals shown. For details of coupler types and sizes relevant to each national approval please refer to the relevant approval document, which is available on request.
When ready to extend, remove the plastic end cap and position the continuation bar into the sleeve. 3
l
d
Rotate the bar into the coupler until tight. 4
To ensure correct installation, tighten the joint to the specified torque using a calibrated torque wrench on the continuation bar. Tightening torques are shown in the table below. Weldable Coupler Dimensions Bar Diameter
14
16
18
20
22
25
26
28
30
32
34
40
50
External Dia.
d
25
30
30
32
36
40
46
50
50
55
55
60
70
85
Coupler Length
l
35
38
42
44
47
52
57
60
63
69
72
78
89
110
Weight (kg)
0.11
0.17
0.18
0.20
0.28
0.38
0.56
0.72
0.72
0.97
0.97
1.28
1.97
3.51
Torque (Nm)
60
85
110
135
165
205
265
270
275
280
285
295
330
350
TTW12
TTW14
TTW16
TTW18
TTW20
TTW22
TTW25
TTW26
TTW28
TTW30
TTW32
TTW34
TTW40
TTW50
Part No. 14
12
Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk
TAPERED THREAD HEADED ANCHORS Anchorage of rebars within a concrete section is traditionally achieved by means of creating a long hooked end on the rebar. This can lead to problems when positioning the bar and can increase congestion. It can ultimately result in larger than necessary concrete sections at the location of the hooked ends.
Tapered Thread Headed Anchor Dimensions l l
The Tapered Thread Headed Anchor provides an alternative method of achieving rebar end anchorage within the concrete. Consisting of an oversized coupler, it carries the full tension load of the bar when it is bearing against the concrete. The Headed Anchor removes the need for hooked rebar and subsequently reduces congestion and simplifies bar placement. This in turn increases speed of construction and gives greater flexibility in design. Typical applications include pile caps and beam to column connections. Bar Diameter
d1
d
d
l1 Bar Diameters 28-40mm
Bar Diameters 12-26mm
12
14
16
18
20
22
24
25
26
28
30
32
34
36
40
40
45
50
55
65
70
80
80
85
90
100
110
115
120
135
External Dia.
d
External Dia.
d1
-
-
-
-
-
-
-
-
-
78
78
78
78
78
78
Coupler Length
l
27.0
30.0
33.0
35.0
35.0
38.5
42.5
43.5
45.0
46.5
50.0
53.5
56.0
60.5
67.5
Coupler Length
l1
-
-
-
-
-
-
-
-
-
21.5
25.0
28.5
30.0
35.5
42.5
Weight (kg)
0.25
0.34
0.46
0.61
0.83
1.06
1.54
1.57
1.84
1.86
2.23
2.81
3.11
3.62
5.17
Torque (Nm)
60
85
110
135
165
205
250
265
270
275
280
285
295
305
330
TTH12
TTH14
TTH16
TTH18
TTH20
TTH22
TTH24
TTH25
TTH26
TTH28
TTH30
TTH32
TTH34
TTH36
TTH40
Part No.
Note: Where tapered thread headed anchors are used, the compressive strength of the concrete shall not be less than strength grade C32/40 (cylinder/cube).
TESTING & APPROVALS The most common sizes of Headed Anchors have been tested and approved by the DIBt and are covered by Approval No Z-1.5-179.
Ancon Tapered Thread couplers meet the requirements of KIWA document BRL 0504 “Mechanical Steel Reinforcement Couplers” and have been awarded KOMO Certificate No. K23495/02.
ACCE SS OR IE S Threading Machine The Ancon threading machine provides a fast, simple and reliable threading operation. The machine is compact, making it completely portable and easy to locate. It is of a robust design to provide a long, low maintenance life.
Certificate No. K23495/02
Threading machines are generally located in stockists' yards. For larger projects Ancon machines can be made available for hire. Please contact Ancon for further information. Training on the correct usage of the threading machine is provided by Ancon technicians.
Ancon Headed Anchors, sizes 12, 14, 16, 20, 25, 32 and 40 are AFCAB Certified.
Machine Consumables The following consumables are available:
Note: Not all coupler types and sizes are relevant to the national approvals shown. For details of coupler types and sizes relevant to each national approval please refer to the relevant approval document, which is available on request.
Chaser Sets Chaser sets are available on a regrindable or disposable basis. Each set can be reground up to 3 times in order to extend cutting life. Please contact Ancon Building Products for details.
Coolant Ancon Building Products recommends the use of Solmaster EPS or a similar water based coolant. Thread Protectors Plastic sleeves are available to protect the tapered threads on reinforcing bars. Torque Wrenches In order to ensure the correct assembly of tapered thread couplers the use of a calibrated torque wrench is essential. Details of wrenches are included in the table below. Each wrench is supplied with a certificate of calibration. Torque Wrench Calibration A calibration service for wrenches purchased from Ancon is available. Please contact Ancon for further details.
Torque Wrenches Torque Wrenches for Couplers and Locknuts
Torque Wrench
Part No.
E879008
E879009
E879010
Torque (Nm)
60 - 285
85 - 350
20 - 90
Torque Values (Nm) Bar Diameter
12
14
16
18
20
22
24
25
26
28
30
32
34
36
40
50
Standard Coupler
60
85
110
135
165
205
250
265
270
275
280
285
295
305
330
350
Positional Coupler
60
85
110
135
165
205
250
265
270
275
280
285
295
305
330
350
Positional Locknut
20
25
30
40
50
60
65
70
80
80
85
90
100
105
110
130
14/16
16/18
16/20
18/20
20/22
20/25
20/28
22/26
25/28
25/32
26/30
28/32
30/34
32/40
34/40
40/50
Bar Diameter
12/14
12/16
Transition Coupler
60/85
60/110 85/110 110/135 110/165 135/165 165/205 165/265 165/275 205/270 265/275 265/285 270/280 275/285 280/295 285/330 295/330 330/350 15
Reinforcing Bar Couplers The threaded ends of the bars are protected by an external plastic sheath. Couplers, which are usually supplied attached to the bar, have their internal threads protected by an internal plastic end cap. For certain applications, especially where Bartec is being used in deep pours, the coupler end caps may not prevent the ingress of concrete fines. For these applications, further protection may be required.
BARTEC
Bartec couplers produce a full strength joint yet they are among the smallest in the Ancon range, best suited to large scale projects requiring a high volume of couplers. The end of each bar to be joined is cut square and enlarged by cold forging. This increases the core diameter of the bar to ensure that the joint is stronger than the bar.
Bartec couplers are also available to join bars of different diameters. For further information please contact Ancon Building Products. Bartec Dimensions
l
Parallel metric threads are cut onto the enlarged ends. The threaded end is then proof tested to a force equal to the characteristic yield strength of the bar. A nominal allowance of +50mm per threaded bar end should be made for cutting square and cold forging.
Bar Diameter External Dia.
d
Coupler Length
l
Thread Size
d
12
16
20
25
28
32
36
40
50
21
26
32
40
45
50
57
62
77
32
40
48
60
66
72
84
90
112
M16
M20
M24
M30
M33
M36
M42
M45
M56
Thread Pitch
2.0
2.5
3.0
3.5
3.5
3.0/4.0*
4.5
4.5
5.5
Weight (kg)
0.04
0.09
0.16
0.32
0.43
0.58
0.87
1.13
2.17
Part No Type A
BT12/A
BT16/A
BT20/A
BT25/A
BT28/A
BT32/A
BT36/A
BT40/A
BT50/A
Part No Type B
BT12/B
BT16/B
BT20/B
BT25/B
BT28/B
BT32/B
BT36/B
BT40/B
BT50/B
Part No Type C
-
BT16/C
BT20/C
BT25/C
BT28/C
BT32/C
BT36/C
BT40/C
BT50/C
*Dependent on geographical location. Please contact Ancon for further details.
Bartec Type A
The Bartec Type A system utilises internally threaded couplers with a single r ight hand thread and is suitable for applications where the continuation bar can be rotated. The ends of the bars are upset and threaded for half the length of the coupler.
Bartec Type B The Bartec Type B uses the same coupler as the Type A system, but one bar is threaded for a full coupler length. It is used for applications where it is difficult but not impossible to rotate the continuation bar.
Bartec Type C
The Bartec Type C system has an additional locknut and is used where the continuation bar cannot be rotated. The continuation bar is threaded for the full coupler length plus the length of the locknut.
16
t 2t t
t 2t 2t
t 2t 2 / 3
t
2 2 / 3 t
Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk
TWO STAGE CONSTRUCTION
In two stage construction utilising Types B and C couplers, it is essential to form a pocket in the face of the first stage concrete. This will create the space for the coupler to run onto the thread of the fixed reinforcing bar. A pocket former is screwed onto the end of the bar and cast flush with the face of the concrete. MOBILE BAR END PREPARATION F ACIL IT Y
Bartec threading equipment is generally established in the rebar supplier’s premises and couplers are usually supplied pre-fixed to the threaded bar ends. On large contracts where bar end preparation can be carried out on site, equipment can be made available for hire. It should be noted that the hirer will need to provide sufficient power, air, rebar support tressles and crane handling facilities.
TESTING & APPROVALS
Bartec couplers are designed and manufactured in accordance with BS EN ISO 9001 and comply in all respects to BS 8110 when used with reinforcing bar to BS 4449. Full destructive tests have been carried out to show compliance with the following codes: ACI 349; ASME III DIV 2 (ACI 359); ACI 318; CSA CAN 3 - N2872.
Typical Test Results Nominal Bar Size Dia. mm
Yield Stress (N/mm2 )
Ultimate Stress (N/mm2 )
Elongation %
Failure Mode
16
531
587
18
Bar Break
20
518
596
20
Bar Break
25
522
625
18
Bar Break
32
484
604
20
Bar Break
40
512
629
18
Bar Break
50
510
669
17
Bar Break
17
Reinforcing Bar Couplers INSTALLATION The Bartec Type A System 1
2
3
Screw the coupler to the rear of the thread on the fixed bar and lock tight. The bar end should be central within the coupler.
Remove the plastic cap from the coupler. Position and rotate the continuation bar in the coupler.
Tighten the joint using a wrench on the continuation bar. After tightening there should be no more than 2-4mm of t hread exposed, depending on the diameter of the rebar.
The Bartec Type B System 1
Screw the coupler to the rear of the thread on the continuation bar.
2
Position the continuation bar with the coupler against the end of the first bar.
4
Using a wrench, rotate the continuation bar to lock the two bar ends against each other within the coupler. After tightening, the length of exposed thread should be no more than half of the coupler length plus 2-4mm depending on the diameter of the rebar. 18
3
Rotate the coupler from the continuation bar to engage against the rear of the thread on the opposing bar and lock tight.
Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk
INSTALLATION The Bartec Type C System 1
Screw the locknut followed by the coupler to the rear of the thread on the continuation bar.
2
Position the continuation bar with the coupler against the end of the first bar.
3
Rotate the coupler from the continuation bar to engage against the rear of the thread on the opposing bar and lock tight.
4
Rotate the locknut along the continuation bar to abut the coupler.
5
Hold the rebar in its required orientation and with a wrench tighten the locknut against the coupler.
19
Reinforcing Bar Couplers BAR X-L COUPLERS Bar X-L couplers provide a cost-effective, full strength joint and are the smallest coupler in the Ancon range. They are particularly appropriate for applications where fatigue is an issue.
Each bar to be joined is cut square and marginally enlarged by a cold forging process in order to increase the cross sectional area of the bar. This ensures that the joint is stronger than the bar. The Bar X-L system differs from the Bartec system because the thread applied to the bar is rolled onto the enlarged ends of the bar rather than cut into it. As with the Bartec system the threaded end is then proof tested to a force equal to the characteristic yield strength of the bar. This method of thread formation provides Bar X-L couplers with enhanced fatigue resistance.
Bar Diameter External Diameter Coupler Length Thread Size Thread Pitch Weight (kg) Part No Type A Part No Type B Part No Type C
d l
Where fatigue is a major consideration on a project, the external surface of the coupler can be profiled. Plastic end sheaths protect the threaded ends of the rebar. The internal threads of the couplers, which are usually supplied fixed to the bar, are protected by internal plastic end caps. For certain applications, for example where Bar X-L is being used in deep pours, the coupler end caps may not prevent the ingress of concrete fines. In such circumstances, it may be necessary to provide additional protection. Bar X-L couplers are also available to join bars of different diameters. For further information please contact Ancon Building Products. The Bar X-L system is only available in selected territories in mainland Europe. Please contact Ancon for locations. l
Bar X-L Dimensions
d
12
14
16
18
20
22
24
25
26
28
32
36
40
50
19 28 M14 2.0 0.03 XL12/A XL12/B XL12/C
22 32 M16 2.0 0.05 XL14/A XL14/B XL14/C
25 36 M18 2.5 0.08 XL16/A XL16/B XL16/C
28 40 M20 2.5 0.11 XL18/A XL18/B XL18/C
31 44 M22 2.5 0.14 XL20/A XL20/B XL20/C
34 48 M24 2.5 0.19 XL22/A XL22/B XL22/C
36 52 M26 2.5 0.20 XL24/A XL24/B XL24/C
40 56 M28 3.0 0.29 XL25/A XL25/B XL25/C
40 58 M29 3.0 0.32 XL26/A XL26/B XL26/C
43 62 M31 3.0 0.39 XL28/A XL28/B XL28/C
49 70 M35 3.5 0.58 XL32/A XL32/B XL32/C
55 78 M39 3.5 0.81 XL36/A XL36/B XL36/C
60 86 M43 4.0 1.09 XL40/A XL40/B XL40/C
75 106 M53 4.0 2.08 XL50/A XL50/B XL50/C
Bar X-L Type A
t 2t
The Bar X-L Type A system utilises internally threaded couplers with a single right hand thread and is suitable for applications where the continuation bar can be rotated. The ends of the bar are upset and threaded for half the length of the coupler.
t
Bar X-L Type B
t 2t
The Bar X-L Type B uses the same coupler as the Type A system, but one bar is threaded for a full coupler length. This is for applications where it is difficult but not impossible to rotate the continuation bar.
Bar X-L Type C
20
Where fatigue is a major consideration, the Bar X-L Type C system has additional locknuts and is used where t he connecting bar cannot be rotated. The continuation bar is threaded for the full coupler length plus the length of the locknut.
2t
1 2 / 3t
2 / 3
t 2t
2 / 3
t
2 2 / 3t
